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NWS Milwaukee/Sullivan WITO.W 0080August 18, 2026

Tornado Warning: Green Lake and Marquette, WI

The National Weather Service office in Milwaukee/Sullivan issued a tornado warning for Green Lake and Marquette in Wisconsin, which was in force until 5:00 p.m. local time on August 18. It was the 80th tornado warning the NWS office in Milwaukee/Sullivan issued in 2026. Wisconsin had 8 tornado warnings in August 2026, against 6 in an average August of 2008-2025 (Wisconsin's tornado warnings by year).

ExpiredWarning

Issued4:12 p.m. CDT, August 18, 2026
In force4:12 p.m. CDT, August 18, 2026
Expired5:00 p.m. CDT, August 18, 2026

In force for 48 minutes; it has expired. The agency may have replaced it with a new notice.

The notice

Issued by
National Weather Service, Milwaukee/Sullivan WI
Area
Green Lake and Marquette
State
Wisconsin
Level
Warning
Issued
4:12 p.m. CDT, August 18, 2026
Expires
5:00 p.m. CDT, August 18, 2026
CAP severity, certainty, urgency
Extreme, Observed, Immediate
VTEC event
KMKX TO.W 0080
Official source
National Weather Service: the notice at its source

Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.

The notice as issued

TORMKX The National Weather Service in Milwaukee/Sullivan has issued a * Tornado Warning for... Northern Green Lake County in south central Wisconsin... Northeastern Marquette County in south central Wisconsin... * Until 500 PM CDT. * At 412 PM CDT, a severe thunderstorm capable of producing a tornado was located over Wautoma, moving southeast at 35 mph. HAZARD...Tornado and ping pong ball size hail. SOURCE...Radar indicated rotation. IMPACT...Flying debris will be dangerous to those caught without shelter. Mobile homes will be damaged or destroyed. Damage to roofs, windows, and vehicles will occur. Tree damage is likely. * This dangerous storm will be near... Berlin and Princeton around 425 PM CDT. Green Lake around 435 PM CDT. Other locations impacted by this tornadic thunderstorm include Neshkoro.

What the agency told people to do

TAKE COVER NOW! Move to a basement or an interior room on the lowest floor of a sturdy building. Avoid windows. If you are outdoors, in a mobile home, or in a vehicle, move to the closest substantial shelter and protect yourself from flying debris.

Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.